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Forum
15

locks on pure query activities

activity that holds such locks more than expected (the stack traces above only show waiting for locks rather than holding locks). hgzwicker
Manual
15

DELETE Queries in JPA/JPQL

the entity objects into an EntityManager. Removing these objects from the EntityManager within an active ... queries can only be executed within an active transaction and the changes are visible to other users ... (); A TransactionRequiredException is thrown if no transaction is active. On success - the executeUpdate method
Manual
15

Deleting JPA Entity Objects

from the database it has to first be retrieved (no matter which way) and then in an active ... . A TransactionRequiredException is thrown if there is no active transaction when remove is called because operations that modify the database require an active transaction. Cascading Remove Marking a reference field
Manual
15

Locking in JPA

. A TransactionRequiredException is thrown if there is no active transaction when lock is called because explicit locking requires an active transaction. A LockTimeoutException is thrown if the requested pessimistic lock ... rollback). ObjectDB supports also releasing a lock explicitly while the transaction is active, as
Manual
15

UPDATE SET Queries in JPA/JPQL

objects into an EntityManager. Updating the relevant entity object fields within an active transaction ... queries can only be executed within an active transaction and the changes are visible to other users ... (); A TransactionRequiredException is thrown if no transaction is active. On success - the executeUpdate
Manual
15

Working with JPA Entity Objects

via an EntityManager’s persist method, which must be invoked within an active transaction. On transaction commit ... Entities section. If a managed entity object is modified within an active transaction the change ... the EntityManager’s remove method within an active transaction. The entity object changes its state from
Manual
15

CRUD Database Operations with JPA

) require an active transaction. In the example above, every Point object is first constructed as ... a managed object (usually by retrieval) and invoke the remove method within the context of an active ... a managed entity object (e.g. by retrieval) and modify it within an active transaction: em
Result
15

ObjectDB Object Database Features

. Persistence is set using JPA/JDO annotations (e.g. @Entity, @Id, @Index). Transparent activation (no activation depth) - objects are retrieved from the database automatically by navigating from ... Automatic object versioning (can be injected to a @Version field). Optimistic locking (always active
Forum
14

Heap Limit reached although the option 'objectdb.temp.page-file' is activated

Heap Limit reached although the option 'objectdb.temp.page-file' is activated
Issue
14

JQL-Update Queries fails with activated L2-Cache

JQL-Update Queries fails with activated L2-Cache